Question

find the roots of quaratic equation by using the quadratic formula in each of the following -3x square+5x+12=0​

Answer 1

Answer:

• Root of polynomial
• alpha+beta= -b/a
• = 5/3
• alpha×beta=c/a
• =12/-3

Answer 2

Answer:

The roots of the quadratic equation is -4/3 and 3

Step-by-step explanation:

WKT; X= (-b±√b²-4ac)/2a

Given : a= -3,b=5 and c=12

X= -(5) ± √5²-4(-3)(12) / 2(-3)

= -5±√25+12(12) / -6

= -5±√25+144 /-6

= -5± √169 / -6

= -5± 13 / -6

= -5+13/-6 and -5-13/-6

= 8/-6 and -18/-6

= -4/3 and 3